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consumer.go
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consumer.go
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package main
import (
"fmt"
"log"
"net/http"
"strconv"
"strings"
"github.com/go-martini/martini"
"github.com/jmoiron/sqlx"
"github.com/speps/go-hashids"
)
////////////////////////////////////////////////////////////////////////////////////////////////////
// Consumer model
////////////////////////////////////////////////////////////////////////////////////////////////////
type Consumer struct {
Id int `db:"id"`
Name string `db:"name"`
CreatedAt string `db:"created_at"`
UpdatedAt *string `db:"updated_at"`
CreatedBy int `db:"created_by"`
UpdatedBy *int `db:"updated_by"`
Enabled bool `db:"enabled"`
Deleted bool `db:"deleted"`
InfoToken *string `db:"info_token"`
LastSeenAt *string `db:"last_seen"` // virtual, only for list view
_db *sqlx.Tx
}
func findAllConsumers(db *sqlx.Tx) []Consumer {
list := make([]Consumer, 0)
db.Select(&list, "SELECT `id`, `name`, `created_at`, `updated_at`, `created_by`, `updated_by`, `enabled`, `deleted`, `info_token` FROM `consumer` c WHERE `deleted` = 0 ORDER BY `name`")
for i := range list {
list[i]._db = db
}
return list
}
func findConsumer(id int, db *sqlx.Tx) *Consumer {
consumer := &Consumer{}
consumer._db = db
db.Get(consumer, "SELECT `id`, `name`, `created_at`, `updated_at`, `created_by`, `updated_by`, `enabled`, `deleted`, `info_token` FROM `consumer` WHERE `id` = ?", id)
if consumer.Id == 0 {
return nil
}
return consumer
}
func (c *Consumer) Save() error {
if c.Id <= 0 {
result, err := c._db.Exec(
"INSERT INTO `consumer` (`name`, `created_at`, `created_by`, `enabled`, `deleted`, `info_token`) VALUES (?,NOW(),?,?,?,?)",
c.Name, c.CreatedBy, c.Enabled, c.Deleted, c.InfoToken,
)
if err != nil {
return err
}
id, err := result.LastInsertId()
if err != nil {
return err
}
c.Id = int(id)
} else {
// deleted=0 is to guarantee that we do not modify deleted consumers
_, err := c._db.Exec(
"UPDATE `consumer` SET `name` = ?, `updated_at` = NOW(), `updated_by` = ?, `enabled` = ?, `deleted` = ?, `info_token` = ? WHERE `id` = ? AND `deleted` = 0",
c.Name, c.UpdatedBy, c.Enabled, c.Deleted, c.InfoToken, c.Id,
)
if err != nil {
return err
}
}
return nil
}
func (c *Consumer) Delete() error {
_, err := c._db.Exec("UPDATE `consumer` SET `deleted` = 1 WHERE `id` = ?", c.Id)
if err != nil {
return err
}
return nil
}
func (c *Consumer) GetIdentifier() string {
hd := hashids.NewData()
hd.Salt = "this is my salt"
hd.MinLength = 15
h := hashids.NewWithData(hd)
hash, _ := h.Encode([]int{c.Id})
return hash
}
func DecodeConsumerIdentifier(hash string) int {
hd := hashids.NewData()
hd.Salt = "this is my salt"
hd.MinLength = 15
h := hashids.NewWithData(hd)
result := h.Decode(hash)
if len(result) == 0 {
return -1
}
return result[0]
}
func (c *Consumer) GetCreator() *User {
return findUser(c.CreatedBy, false, c._db)
}
func (c *Consumer) GetUpdater() *User {
if c.UpdatedBy == nil {
return nil
}
return findUser(*c.UpdatedBy, false, c._db)
}
func (c *Consumer) GetRestrictions(loadContext bool) []Restriction {
return findRestrictionsByConsumer(c.Id, loadContext, c._db)
}
func (c *Consumer) GetSecrets(loadSecrets bool) []Secret {
secrets := make([]Secret, 0)
secretCol := ""
if loadSecrets {
secretCol = ", `secret`"
}
c._db.Select(&secrets, "SELECT `id`, `slug`, `name`, `created_at`, `created_by`, `updated_at`, `updated_by`"+secretCol+" FROM `secret` WHERE `id` IN (SELECT `secret_id` FROM `consumer_secret` WHERE `consumer_id` = ?) ORDER BY `name`", c.Id)
for i := range secrets {
secrets[i]._db = c._db
}
return secrets
}
func (c *Consumer) WriteSecrets(secrets []consumerSecret) error {
_, err := c._db.Exec("DELETE FROM `consumer_secret` WHERE `consumer_id` = ?", c.Id)
if err != nil {
return err
}
for _, secret := range secrets {
if secret.Checked {
_, err := c._db.Exec("INSERT INTO `consumer_secret` (`consumer_id`, `secret_id`) VALUES (?,?)", c.Id, secret.Id)
if err != nil {
return err
}
}
}
return nil
}
func (c *Consumer) WriteRestrictions(restrictons map[string]consumerRestriction) error {
for rtype, restriction := range restrictons {
r := &Restriction{
ConsumerId: c.Id,
Type: rtype,
Context: PackContext(restriction.Context),
Enabled: restriction.Enabled,
_db: c._db,
}
err := r.Save()
if err != nil {
return err
}
}
return nil
}
////////////////////////////////////////////////////////////////////////////////////////////////////
// HTTP Handlers
////////////////////////////////////////////////////////////////////////////////////////////////////
type emptyStruct struct{}
type consumerListData struct {
layoutData
Consumers []Consumer
}
type consumerSecret struct {
Id int `db:"id"`
Name string `db:"name"`
Slug string `db:"slug"`
Checked bool `db:"checked"`
}
type consumerRestriction struct {
Type string
Context interface{}
Enabled bool
Error string
}
func (cr *consumerRestriction) GetHandler() RestrictionHandler {
handler, ok := restrictionHandlers[cr.Type]
if !ok {
return nil
}
return handler
}
func (cr *consumerRestriction) IsNullContext() bool {
handler := cr.GetHandler()
if handler == nil {
return false
}
return handler.IsNullContext(cr.Context)
}
type consumerFormData struct {
layoutData
Consumer int
Name string
NameError string
Enabled bool
InfoToken *string
InfoTokenError string
OtherError string
Secrets []consumerSecret
Restrictions map[string]consumerRestriction
}
func newConsumerFormData(layout layoutData) consumerFormData {
data := consumerFormData{layoutData: layout}
data.Secrets = make([]consumerSecret, 0)
data.Restrictions = make(map[string]consumerRestriction)
return data
}
func (data *consumerFormData) primeRestrictions() {
data.Restrictions = make(map[string]consumerRestriction)
for identifier, handler := range restrictionHandlers {
data.Restrictions[identifier] = consumerRestriction{identifier, handler.GetNullContext(), false, ""}
}
}
func (data *consumerFormData) primeSecrets(db *sqlx.Tx) {
secrets := findAllSecrets(false, db)
data.Secrets = make([]consumerSecret, len(secrets))
for idx, secret := range secrets {
data.Secrets[idx].Id = secret.Id
data.Secrets[idx].Name = secret.Name
data.Secrets[idx].Slug = secret.Slug
data.Secrets[idx].Checked = false
}
}
func (data *consumerFormData) fromConsumer(c *Consumer) {
data.Consumer = c.Id
data.Name = c.Name
data.Enabled = c.Enabled
data.InfoToken = c.InfoToken
data.Secrets = make([]consumerSecret, 0)
// load secrets
c._db.Select(&data.Secrets, "SELECT s.id, s.name, s.slug, IF(cs.secret_id IS NULL, 0, 1) AS checked FROM secret s LEFT JOIN consumer_secret cs ON s.id = cs.secret_id AND cs.consumer_id = ? ORDER BY s.name", c.Id)
// load restrictions (and overwrite the dummy values from primeRestrictions)
for _, restriction := range c.GetRestrictions(true) {
data.Restrictions[restriction.Type] = consumerRestriction{restriction.Type, restriction.UnpackContext(), restriction.Enabled, ""}
}
}
func (data *consumerFormData) serializeForm(req *http.Request) bool {
okay := true
name := strings.TrimSpace(req.FormValue("name"))
enabled := req.FormValue("enabled") == "1"
infoToken := req.FormValue("info_token")
data.Enabled = enabled
if len(name) > 0 {
data.Name = name
} else {
data.NameError = "The name cannot be empty."
okay = false
}
if len(infoToken) > 0 {
data.InfoToken = &infoToken
}
for idx, consumerSecret := range data.Secrets {
data.Secrets[idx].Checked = req.FormValue(fmt.Sprintf("secret_%d", consumerSecret.Id)) == "1"
}
// serialize restriction information
for rtype, consumerRestriction := range data.Restrictions {
consumerRestriction.Enabled = req.FormValue("restriction_"+rtype) == "1"
handler, ok := restrictionHandlers[rtype]
if !ok {
log.Println("Warning: restriction found for unknown type '" + rtype + "'.")
continue
}
resultCtx, err := handler.SerializeForm(req, consumerRestriction.Enabled, consumerRestriction.Context)
if err != nil {
consumerRestriction.Error = err.Error()
okay = false
}
// always use the new context, if we got one
if resultCtx != nil {
consumerRestriction.Context = resultCtx
}
// set the struct we just read; this is because mapvar["key"].Field is not allowed in Go
data.Restrictions[rtype] = consumerRestriction
}
return okay
}
func consumersIndexAction(user *User, session *Session, db *sqlx.Tx) response {
data := &consumerListData{NewLayoutData("Consumers", "consumers", user, session.CsrfToken), make([]Consumer, 0)}
lastSeen := "(SELECT a.`requested_at` FROM `access_log` a WHERE a.`consumer_id` = c.`id` ORDER BY `id` DESC LIMIT 1) AS `last_seen`"
// find consumers (do not even select the consumer itself, we don't need it)
db.Select(
&data.Consumers,
"SELECT `id`, `name`, `created_at`, `updated_at`, `created_by`, `updated_by`, `enabled`, `info_token`, "+lastSeen+" FROM `consumer` c WHERE `deleted` = 0 ORDER BY `name`",
)
for i := range data.Consumers {
data.Consumers[i]._db = db
}
return renderTemplate(200, "consumers/index", data)
}
func consumersAddAction(user *User, session *Session, db *sqlx.Tx) response {
data := newConsumerFormData(NewLayoutData("Add Consumer", "consumers", user, session.CsrfToken))
data.primeRestrictions()
data.primeSecrets(db)
// set some sane defaults
data.Enabled = true
return renderTemplate(200, "consumers/form", data)
}
func consumersCreateAction(req *http.Request, user *User, session *Session, db *sqlx.Tx) response {
data := newConsumerFormData(NewLayoutData("Add Consumer", "consumers", user, session.CsrfToken))
data.primeRestrictions()
data.primeSecrets(db)
// evaluate the form
okay := data.serializeForm(req)
if !okay {
return renderTemplate(400, "consumers/form", data)
}
// create the consumer
newConsumer := &Consumer{
Id: -1,
Name: data.Name,
Enabled: data.Enabled,
InfoToken: data.InfoToken,
CreatedBy: user.Id,
_db: db,
}
err := newConsumer.Save()
if err != nil {
panic(err)
}
// create links to the allowed secrets
err = newConsumer.WriteSecrets(data.Secrets)
if err != nil {
panic(err)
}
// write all restrictions
err = newConsumer.WriteRestrictions(data.Restrictions)
if err != nil {
panic(err)
}
auditLog := NewAuditLog(db, req)
auditLog.LogConsumerCreated(newConsumer.Id, user.Id)
return redirect(302, "/consumers")
}
func consumersEditAction(params martini.Params, user *User, session *Session, db *sqlx.Tx) response {
id, err := strconv.Atoi(params["id"])
if err != nil {
return renderError(400, "Invalid ID given.")
}
consumer := findConsumer(id, db)
if consumer == nil {
return renderError(404, "Consumer could not be found.")
}
data := newConsumerFormData(NewLayoutData("Edit Consumer", "consumers", user, session.CsrfToken))
data.primeRestrictions()
data.primeSecrets(db)
data.fromConsumer(consumer)
return renderTemplate(200, "consumers/form", data)
}
func consumersUpdateAction(params martini.Params, req *http.Request, user *User, session *Session, db *sqlx.Tx) response {
id, err := strconv.Atoi(params["id"])
if err != nil {
return renderError(400, "Invalid ID given.")
}
consumer := findConsumer(id, db)
if consumer == nil {
return renderError(404, "Consumer could not be found.")
}
// initialize our data object
data := newConsumerFormData(NewLayoutData("Edit Consumer", "consumers", user, session.CsrfToken))
data.primeRestrictions()
data.primeSecrets(db)
data.fromConsumer(consumer)
// evaluate the form
okay := data.serializeForm(req)
if !okay {
return renderTemplate(400, "consumers/form", data)
}
// update the consumer
consumer.Name = data.Name
consumer.Enabled = data.Enabled
consumer.InfoToken = data.InfoToken
consumer.UpdatedBy = &user.Id
err = consumer.Save()
if err != nil {
panic(err)
}
// create links to the allowed secrets
err = consumer.WriteSecrets(data.Secrets)
if err != nil {
panic(err)
}
// write all restrictions
err = consumer.WriteRestrictions(data.Restrictions)
if err != nil {
panic(err)
}
auditLog := NewAuditLog(db, req)
auditLog.LogConsumerUpdated(consumer.Id, user.Id)
return redirect(302, "/consumers")
}
func consumersDeleteConfirmAction(params martini.Params, user *User, session *Session, db *sqlx.Tx) response {
id, err := strconv.Atoi(params["id"])
if err != nil {
return renderError(400, "Invalid ID given.")
}
consumer := findConsumer(id, db)
if consumer == nil {
return renderError(404, "Consumer could not be found.")
}
data := newConsumerFormData(NewLayoutData("Delete Consumer", "consumers", user, session.CsrfToken))
data.fromConsumer(consumer)
return renderTemplate(200, "consumers/confirmation", data)
}
func consumersDeleteAction(params martini.Params, user *User, req *http.Request, session *Session, db *sqlx.Tx) response {
id, err := strconv.Atoi(params["id"])
if err != nil {
return renderError(400, "Invalid ID given.")
}
consumer := findConsumer(id, db)
if consumer == nil {
return renderError(404, "Consumer could not be found.")
}
data := newConsumerFormData(NewLayoutData("Delete Consumer", "consumers", user, session.CsrfToken))
data.fromConsumer(consumer)
err = consumer.Delete()
if err != nil {
panic(err)
}
auditLog := NewAuditLog(db, req)
auditLog.LogConsumerDeleted(consumer.Id, user.Id)
return redirect(302, "/consumers")
}
type consumerUrlsData struct {
layoutData
Consumer *Consumer
Secrets []Secret
}
func newConsumerUrlsData(layout layoutData) consumerUrlsData {
data := consumerUrlsData{layoutData: layout}
data.Secrets = make([]Secret, 0)
return data
}
func consumersUrlsAction(params martini.Params, user *User, req *http.Request, session *Session, db *sqlx.Tx) response {
id, err := strconv.Atoi(params["id"])
if err != nil {
return renderError(400, "Invalid ID given.")
}
consumer := findConsumer(id, db)
if consumer == nil {
return renderError(404, "Consumer could not be found.")
}
data := newConsumerUrlsData(NewLayoutData("Consumer URLs", "consumers", user, session.CsrfToken))
data.Consumer = consumer
data.Secrets = consumer.GetSecrets(false)
return renderTemplate(200, "consumers/urls", data)
}
type infoPageStruct struct {
BaseUrl string
Consumer *Consumer
Secrets []Secret
}
func consumerInfoAction(params martini.Params, db *sqlx.Tx) response {
id := DecodeConsumerIdentifier(params["consumer"])
if id < 1 {
return renderError(400, "Invalid ID given.")
}
consumer := findConsumer(id, db)
if consumer == nil {
return renderError(404, "Consumer could not be found.")
}
requiredToken := consumer.InfoToken
if requiredToken == nil || *requiredToken != params["token"] {
return renderError(404, "Consumer could not be found.")
}
data := infoPageStruct{
config.Server.BaseUrl,
consumer,
consumer.GetSecrets(false),
}
return renderTemplate(200, "consumer", data)
}
func setupConsumersCtrl(app *martini.ClassicMartini) {
app.Group("/consumers", func(r martini.Router) {
app.Get("", consumersIndexAction)
app.Get("/add", consumersAddAction)
app.Post("", sessions.RequireCsrfToken, consumersCreateAction)
app.Get("/:id", consumersEditAction)
app.Put("/:id", sessions.RequireCsrfToken, consumersUpdateAction)
app.Delete("/:id", sessions.RequireCsrfToken, consumersDeleteAction)
app.Get("/:id/delete", consumersDeleteConfirmAction)
app.Get("/:id/urls", consumersUrlsAction)
}, sessions.RequireLogin)
// public
app.Get("/info/:consumer/:token", consumerInfoAction)
}